<template>
  <div>
    <p>row</p>
    <div class="row">
      <div class="item"></div>
      <div class="item"></div>
      <div class="item"></div>
    </div>
    <p>colum</p>

    <div class="colum">
      <div class="item"></div>
      <div class="item"></div>
      <div class="item"></div>
    </div>
  </div>
</template>
    <style scoped>
.row {
  display: flex;
  flex-direction: row;
}

.colum {
  display: flex;
  flex-direction: column;
}

.item {
  background: red;
  height: 100px;
  width: 100px;
  border: 1px solid #000;
}
</style>